Nick joined Ensemble Therapeutics as the Chief Scientific Officer in May 2006. In his role as CSO, Nick heads up the firm's drug discovery program investigating the rapid synthesis of macrocycles using DNA-programmed chemistry, as drug candidates for disease relevant protein-protein and protease targets.After working as a medicinal chemist for Glaxo, Nick joined Pfizer in Sandwich, England in 1984. He worked initially in cardiovascular disease, and is an inventor on patents for the neutral endopeptidase inhibitor candoxatrilat. Later he led the chemistry team on cGMP PDE inhibitors for angina and erectile dysfunction, and is an inventor on patents for Viagra. Subsequently, Nick established Pfizer's combinatorial chemistry group and authored several related papers and a textbook. He also managed the high throughput screening group and materials management, and played a key role in the global integration of the Pfizer, Warner-Lambert and Pharmacia compound collections. In 2003 Nick moved to the Pfizer Research Technology Center in Cambridge, Massachusetts, to lead the Chemical Sciences group investigating new targets for drug discovery and new chemistry technologies.